CNK vs PMCB: Correlation
How closely do Cinemark Holdings Inc Cinemark Holdings, Inc. (CNK) and PharmaCyte Biotech, Inc. (PMCB) trade together? Their weekly returns over three years give a correlation of -0.23, which is negative.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are CNK and PMCB?
Over the past 3 years, CNK and PMCB moved with a correlation of -0.23, which is negative, meaning they tend to move in opposite directions. The link has loosened recently: the 1-year correlation (-0.43) runs below the 3-year figure (-0.23). Over 5 years the correlation is -0.10, and the annualized covariance of weekly returns is -591.3 %².
Among the 12 assets we track against CNK, PMCB sits near the bottom by co-movement, at rank #9. Correlation aside, the last 12 months split them widely, with CNK ahead by 87.1 points (+42.8% versus -44.3%). Note the risk asymmetry: PMCB runs 1.5 times the annualized volatility of the other leg, so equal-weighting the two is not an equal-risk position.
How is this computed?
Pearson correlation on weekly returns: ρ(A,B) = cov(rA, rB) / (σA · σB), over windows of 52, 156 and 260 weeks. Covariance is annualized (×52) and expressed in %². Full definitions on the methodology page.
CNK vs PMCB: side by side
| CNK (Cinemark Holdings Inc Cinemark Holdings, Inc.) | PMCB (PharmaCyte Biotech, Inc.) | |
|---|---|---|
| 1-year return | +42.8% | -44.3% |
| 5-year return | +119.9% | -83.6% |
| Volatility (ann.) | 40.6% | 62.1% |
| Beta vs S&P 500 | 0.29 | 0.92 |
| Max drawdown (3Y) | -38.4% | -80.3% |
| Market cap | $4.2B | – |
| P/E (trailing) | 20.8 | – |
| Dividend yield | 0.94% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | CNK | PMCB |
|---|---|---|
| 2022 | -46.3% | +17.2% |
| 2023 | +62.7% | -26.3% |
| 2024 | +119.9% | -27.3% |
| 2025 | -24.1% | -53.9% |
| 2026 | +58.8% | -25.4% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are CNK and PMCB good diversifiers for each other?
Yes: at -0.23, the two have gone their own ways historically, which is what genuine diversification looks like.
FAQ
What is the correlation between CNK and PMCB?
The CNK/PMCB correlation stands at -0.23 on a 3-year window (1 year: -0.43, 5 years: -0.10), computed from weekly returns as of 2026-08-27.
Is PMCB a good diversifier for CNK?
Yes: at -0.23, the two have gone their own ways historically, which is what genuine diversification looks like.
What does a correlation of -0.23 mean?
On the −1 to +1 scale, -0.23 describes how much the two returns move together: +1 is lockstep, 0 is independence, negative values mean opposite directions. It says nothing about which performed better.
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Related comparisons
Hubs: CNK correlations · PMCB correlations
